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Replacement 9-13
Octel Overture 200/300 Serenade 3.0
PB60014–01
Printed Circuit Assembly (PCA)
Motherboard
Option Control
Chip (OCC)
Figure 9-9
Card Cage Showing a Printed Circuit Assembly and an Option Control Chip
Replacing a PCA
Use
the following procedure to replace a VCU or CPU:
1.
Unlock and open the door of the cabinet.
2.
Put on an antistatic wrist strap. Connect it to an unpainted portion of the cabinet.
3.
Switch OFF the power supply unit.
4.
Disengage the PCA from the motherboard by pivoting the plastic card ejectors at the top and bottom
of the PCA front edge.
5.
Slide the PCA out of card cage.
.
Handle the PCA
only
by the top and bottom edges.
Do not
touch the components on the PCA.
6.
Store the removed PCA in a static protection bag.
7.
Remove the replacement PCA from its static protection bag.
8.
While holding the top and bottom edges of the replacement PCA, slide it into the card cage. Check
that the card slides in the plastic card guides to ensure correct insertion.
9.
Pivot the card ejectors, as needed, to grip the small flanges on the front edges of the card cage.
10.
Firmly seat the PCA connectors into the motherboard by pressing the ejectors against the front edge
of the PCA. The ejectors will clip onto small pins on the PCA when the connectors are seated.